The old Mediterranean port of Kotor is surrounded by fortifications built during the Venetian period. It is located on the Bay of Kotor (Boka Kotorska), one of the most indented parts of the Adriatic Sea. Some have called it the southern-most fjord in Europe, but it is a ria, a submerged river canyon. Together with the nearly overhanging limestone cliffs of Orjen and Lovćen, Kotor and its surrounding area form an impressive and picturesque Mediterranean landscape.

In recent years, Kotor has seen a steady increase in tourists, many of them coming by cruise ship. Visitors are attracted both by the natural beauty of the Gulf of Kotor and by the old town of Kotor.

Kotor has been fortified since the early Middle Ages, when Emperor Justinian built a fortress above Acruvium in 535, after expelling the Ostrogoths; a second town probably grew up on the heights round it, for Constantine Porphyrogenitus, in the 10th century, alludes to Lower Kotor. The city was plundered by the Saracens in 840. Kotor was one of the more influential Dalmatian city-states of romanized Illyrians throughout the Middle Ages, and until the 11th century the Dalmatian language was spoken in Kotor.

In 1002, the city suffered damage under the occupation of the First Bulgarian Empire, and in the following year it was ceded to Serbia by the Bulgarian Tsar Samuil. However, the local population resisted the pact and, taking advantage of its alliance with the Republic of Ragusa, only submitted in 1184, while maintaining its republican institutions and its right to conclude treaties and engage in war. It was already an episcopal see, and, in the 13th century, Dominican and Franciscan monasteries were established to check the spread of Bogomilism.

The city was part of the Venetian Albania province of the Venetian Republic from 1420 to 1797. It was besieged by the Ottomans in 1538 and 1657. Four centuries of Venetian domination have given the city the typical Venetian architecture, that contributed to make Kotor a UNESCO world heritage site.[3] In those centuries Renaissance-related literature enjoyed a huge development in Kotor: the most famous writers were Bernardo Pima, Nicola Chierlo, Luca Bisanti, Alberto de Gliricis, Domenico and Vincenzo Burchia, Vincenzo Ceci, Antonio Zambella and Francesco Morandi.

Maritime Gate in the city walls.

In the 14th- and 15th centuries, there was an influx of settlers from the oblasts of Trebinje (the region around forts Klobuk Ledenica and Rudina) and the Hum lands (Gacko and Dabar) to Kotor.[4]

While under Venetian rule, Kotor was besieged by the Ottoman Empire in 1538 and 1657, endured the plague in 1572, and was nearly destroyed by earthquakes in 1563 and 1667.

In World War I, Kotor was one of three main bases of the Austro-Hungarian Navy and homeport to the Austrian Fifth Fleet, consisting of pre-dreadnought battleships and light cruisers. The area was the site of some of the fiercest battles between local Montenegrin Slavs and Austria-Hungary. After 1918, the city became a part of Yugoslavia and officially became known as Kotor.

Kotor has one of the best preserved medieval old towns in the Adriatic and is a UNESCO world heritage site.[3] It is home to numerous sights, such as the Cathedral of Saint Tryphon in the old town (built in 1166), and the ancient walls which stretch for 4.5 km (3 mi) directly above the city. Sveti Đorđe and Gospa od Škrpijela islets off the coast of Perast are also among the more popular destinations in the vicinity of Kotor.

Kotor is the administrative centre of Kotor municipality, which includes the towns of Risan and Perast, as well as many small hamlets around the Bay of Kotor, and has a population of 22,601.[7]

The town of Kotor itself has 961 inhabitants, but the administrative limits of the town encompass only the area of the Old Town. However, the urban area of Kotor also includes Dobrota (8,819) and Škaljari (3,807), thus the population of Kotor urban area is close to 13,000 inhabitants (15,000 if neighbouring hamlets of Muo, Prčanj and Stoliv are included).

According to documents from 1900, Kotor had 7,617 Catholics, and 7,207 Orthodox Christians. Kotor is still the seat of the CatholicBishopric of Kotor, which covers the entire gulf. In 2011, 78% citizens of Kotor were Orthodox Christians, while 13% were listed as Roman Catholic.

Kotor is connected to the Adriatic Motorway and the rest of the coast and inland Montenegro by Vrmac Tunnel. Inland is reachable by detouring from Adriatic motorway at Budva or Sutomore (through Sozina tunnel). There is also a historic road connecting Kotor with Cetinje, which offers spectacular views of Kotor bay.

Tivat Airport is 5 kilometres (3.1 mi) away, and there are regular flights to Belgrade, Moscow and Paris and dozens of charter planes land daily on Tivat airport during the summer season.

Podgorica Airport is 65 kilometres (40 mi) away, and it has regular flights to major European destinations throughout the year.